﻿<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Floor Plan Editor</title>
  <meta name="description" content="A simple floor plan editor." />
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- Copyright 1998-2019 by Northwoods Software Corporation. -->

  <script src="../release/go.js"></script>
  <script src="DrawCommandHandler.js"></script>
  <script src="RotateMultipleTool.js"></script>
  <script src="ResizeMultipleTool.js"></script>
  <script src="GuidedDraggingTool.js"></script>
  <style type="text/css">
    #menuBar {
      border: none;
      border: 0px;
      margin: 0px;
      padding: 0px;
      font: 67.5% 'Lucida Sans Unicode', 'Bitstream Vera Sans', 'Trebuchet Unicode MS', 'Lucida Grande', Verdana, Helvetica, sans-serif;
      font-size: 12px;
      font-weight: bold;
      width: auto;
    }

      #menuBar ul {
        background: #ededed;
        height: 25px;
        list-style: none;
        margin: 0;
        padding: 0;
      }

      #menuBar li {
        float: left;
        padding: 0px;
      }

        #menuBar li a {
          background: #ededed;
          display: block;
          font-weight: normal;
          line-height: 25px;
          margin: 0px;
          padding: 0px 5px;
          text-align: center;
          text-decoration: none;
        }

      #menuBar > ul > li > a {
        color: black;
      }

      #menuBar ul ul a {
        color: black;
      }

      #menuBar li > a:hover,
      #menuBar ul li:hover > a {
        background: #007FFF;
        color: white;
        text-decoration: none;
      }

      #menuBar li ul {
        background: #9CCB19;
        display: none;
        height: auto;
        padding: 0px;
        margin: 0px;
        border: 0px;
        position: absolute;
        width: 150px;
        z-index: 200;
      }

      #menuBar li:hover ul {
        display: block;
      }

      #menuBar li li {
        background: #ededed;
        display: block;
        float: none;
        margin: 0px;
        padding: 0px;
        width: 150px;
      }

      #menuBar li:hover li a {
        background: none;
      }

      #menuBar li ul a {
        display: block;
        height: 25px;
        font-size: 12px;
        font-style: normal;
        margin: 0px;
        padding: 0px 10px 0px 15px;
        text-align: left;
      }

        #menuBar li ul a:hover,
        #menuBar li ul li:hover > a {
          background: #007FFF;
          border: 0px;
          color: white;
          text-decoration: none;
        }
    /*sub-sublist*/
    #nav li:hover ul ul {
      display: none;
    }

    #nav li li:hover ul {
      background: #9CCB19;
      margin-left: 150px;
      margin-top: -25px;
      display: block;
    }
      /*sub-sub-sublist*/
      #nav li li:hover ul ul {
        display: none;
      }

    #nav li li li:hover ul {
      background: #9CCB19;
      margin-left: 150px;
      margin-top: -25px;
      display: block;
      color: #0276FD;
    }

    input {
      text-align: center;
      font-size: large;
      float: left;
    }

    #myOverviewDiv {
      background-color: lightgray;
    }

    #currentFile {
      background: #1874CD;
      width: 100%;
      text-align: center;
      font-family: Arial;
      font-weight: bold;
      font-size: 14px;
      padding: 3px 0px;
      color: white;
    }

    .draggable {
      display: inline-block;
      vertical-align: top;
      border: 1px solid gray;
      background-color: #e2e2e2;
      position: absolute;
      top: 40%;
      left: 50%;
      width: 300px;
      height: 200px;
      z-index: 500;
    }

    .handle {
      background-color: #9CCB19;
      text-align: center;
      font: bold 12px sans-serif;
    }

    .elementText {
      font-family: Arial;
      font-size: medium;
      margin-left: 10px;
      margin-top: 20px;
      margin-bottom: 10px;
    }

    .mySavedFiles {
      font-family: Arial;
      font-size: medium;
      width: 250px;
      margin-left: 25px;
    }

    .elementBtn {
      margin-top: 20px;
      font-family: Arial;
      font-size: medium;
      margin-left: 20px;
    }
  </style>
  <script id="code">

    /*function checkLocalStorage () {
        try {
            window.localStorage.setItem('item', 'item');
            window.localStorage.removeItem('item');
            return true;
        } catch (e) {
            return false;
        }
    }*/

    function init() {

      // hides open HTML Element
      var openDocument = document.getElementById("openDocument");
      openDocument.style.visibility = "hidden";
      // hides remove HTML Element
      var removeDocument = document.getElementById("removeDocument");
      removeDocument.style.visibility = "hidden";

      var $ = go.GraphObject.make;  // for more concise visual tree definitions

      myDiagram =
        $(go.Diagram, "myDiagramDiv",
          {
            allowLink: false,  // no user-drawn links

            commandHandler: new DrawCommandHandler(),  // defined in DrawCommandHandler.js
            // default to having arrow keys move selected nodes
            "commandHandler.arrowKeyBehavior": "move",
            // allow Ctrl-G to call groupSelection()
            "commandHandler.archetypeGroupData": { text: "Group", isGroup: true },

            rotatingTool: new RotateMultipleTool(),  // defined in RotateMultipleTool.js

            resizingTool: new ResizeMultipleTool(),  // defined in ResizeMultipleTool.js

            draggingTool: new GuidedDraggingTool(),  // defined in GuidedDraggingTool.js
            "draggingTool.horizontalGuidelineColor": "blue",
            "draggingTool.verticalGuidelineColor": "blue",
            "draggingTool.centerGuidelineColor": "green",
            "draggingTool.guidelineWidth": 1,

            // notice whenever the selection may have changed
            "ChangedSelection": enableAll,  // defined below, to enable/disable commands

            // notice when the Paste command may need to be reenabled
            "ClipboardChanged": enableAll,

            // notice when an object has been dropped from the palette
            "ExternalObjectsDropped": function(e) {
              document.getElementById("myDiagramDiv").focus();  // assume keyboard focus should be on myDiagram
              myDiagram.toolManager.draggingTool.clearGuidelines();  // remove any guidelines
            }

          });


      // sets the qualities of the tooltip
      var tooltiptemplate =
        $("ToolTip",
          $(go.TextBlock,
            { margin: 3, editable: true },
            // converts data about the part into a string
            new go.Binding("text", "", function(data) {
              if (data.item != undefined) return data.item;
              return "(unnamed item)";
            }))
        );

      // Define the generic furniture and structure Nodes.
      // The Shape gets it Geometry from a geometry path string in the bound data.
      myDiagram.nodeTemplate =
        $(go.Node, "Spot",
          {
            locationObjectName: "SHAPE",
            locationSpot: go.Spot.Center,
            toolTip: tooltiptemplate,
            selectionAdorned: false  // use a Binding on the Shape.stroke to show selection
          },
          // remember the location of this Node
          new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
          // move a selected part into the Foreground layer, so it isn't obscured by any non-selected parts
          new go.Binding("layerName", "isSelected", function(s) { return s ? "Foreground" : ""; }).ofObject(),
          // can be resided according to the user's desires
          { resizable: true, resizeObjectName: "SHAPE" },
          { rotatable: true, rotateObjectName: "SHAPE" },
          $(go.Shape,
            {
              name: "SHAPE",
              // the following are default values;
              // actual values may come from the node data object via data-binding
              geometryString: "F1 M0 0 L20 0 20 20 0 20 z",
              fill: "rgb(130, 130, 256)"
            },
            // this determines the actual shape of the Shape
            new go.Binding("geometryString", "geo"),
            // allows the color to be determined by the node data
            new go.Binding("fill", "color"),
            // selection causes the stroke to be blue instead of black
            new go.Binding("stroke", "isSelected", function(s) { return s ? "dodgerblue" : "black"; }).ofObject(),
            // remember the size of this node
            new go.Binding("desiredSize", "size", go.Size.parse).makeTwoWay(go.Size.stringify),
            // can set the angle of this Node
            new go.Binding("angle", "angle").makeTwoWay()
          )
        );

      myDiagram.nodeTemplate.contextMenu =
        $("ContextMenu",
          $("ContextMenuButton",
            $(go.TextBlock, "Rename", { margin: 3 }),
            { click: function(e, obj) { rename(obj); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Cut", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.cutSelection(); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Copy", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.copySelection(); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Rotate +45", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.rotate(45); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Rotate -45", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.rotate(-45); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Rotate +90", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.rotate(90); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Rotate -90", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.rotate(-90); } }),
          $("ContextMenuButton",
            $(go.TextBlock, "Rotate 180", { margin: 3 }),
            { click: function(e, obj) { myDiagram.commandHandler.rotate(180); } })
        );


      // group settings from basic.html to lock things together
      myDiagram.groupTemplate =
        $(go.Group, go.Panel.Auto,
          {
            ungroupable: true,  // enable Ctrl-Shift-G to ungroup a selected Group
            toolTip: tooltiptemplate
          },
          $(go.Shape, "Rectangle",  // the Group is not seen but can be selected due to the transparent fill
            { fill: "transparent", stroke: "lightgray", strokeWidth: 1 }),
          $(go.Placeholder)
        );

      // make grouped Parts unselectable
      myDiagram.addDiagramListener("SelectionGrouped", function(e) {
        // e.subject should be the new Group
        e.subject.memberParts.each(function(part) { part.selectable = false; });
      });

      myDiagram.addDiagramListener("SelectionUngrouped", function(e) {
        // e.parameter should be collection of ungrouped former members
        e.parameter.each(function(part) {
          part.selectable = true;
          part.isSelected = true;
        });
      });

      myDiagram.addDiagramListener("SelectionCopied", function(e) {
        // selection collection will be modified during this loop,
        // so make a copy of it first
        var sel = myDiagram.selection.toArray();
        for (var i = 0; i < sel.length; i++) {
          var part = sel[i];
          // don't have any members of Groups be selected or selectable
          if (part instanceof go.Group) {
            var mems = new go.Set().addAll(part.memberParts);
            mems.each(function(member) {
              member.isSelected = false;
              member.selectable = false;
            });
          }
        }
      });

      // change the title to indicate that the diagram has been modified
      myDiagram.addDiagramListener("Modified", function(e) {
        var currentFile = document.getElementById("currentFile");
        var idx = currentFile.textContent.indexOf("*");
        if (myDiagram.isModified) {
          if (idx < 0) currentFile.textContent = currentFile.textContent + "*";
        } else {
          if (idx >= 0) currentFile.textContent = currentFile.textContent.substr(0, idx);
        }
      });


      // the Palette

      // brushes for furniture structures
      var wood = $(go.Brush, "Linear", { 0: "#964514", 1: "#5E2605" });
      var wall = $(go.Brush, "Linear", { 0: "#A8A8A8", 1: "#545454" });
      var blue = $(go.Brush, "Linear", { 0: "#42C0FB", 1: "#009ACD" });
      var metal = $(go.Brush, "Linear", { 0: "#A8A8A8", 1: "#474747" });
      var green = $(go.Brush, "Linear", { 0: "#9CCB19", 1: "#698B22" });

      // default structures and furniture
      myPalette =
        $(go.Palette, "myPaletteDiv",
          {
            nodeTemplate: myDiagram.nodeTemplate,  // shared with the main Diagram
            "contextMenuTool.isEnabled": false,  // but disable context menus
            allowZoom: false,
            layout: $(go.GridLayout, { cellSize: new go.Size(1, 1), spacing: new go.Size(5, 5) }),
            // initialize the Palette with a few furniture and structure nodes
            model: $(go.GraphLinksModel,
              {
                nodeDataArray: [
                  {
                    key: 1,
                    geo: "F1 M0 0 L5,0 5,40 0,40 0,0z x M0,0 a40,40 0 0,0 -40,40 ",
                    item: "left door",
                    color: wall
                  },
                  {
                    key: 2,
                    geo: "F1 M0 0 L5,0 5,40 0,40 0,0z x M5,0 a40,40 0 0,1 40,40 ",
                    item: "right door",
                    color: wall
                  },
                  {
                    key: 3, angle: 90,
                    geo: "F1 M0,0 L0,100 12,100 12,0 0,0z",
                    item: "wall",
                    color: wall
                  },
                  {
                    key: 4, angle: 90,
                    geo: "F1 M0,0 L0,50 10,50 10,0 0,0 x M5,0 L5,50z",
                    item: "window",
                    color: "whitesmoke"
                  },
                  {
                    key: 5,
                    geo: "F1 M0,0 L50,0 50,12 12,12 12,50 0,50 0,0 z",
                    item: "corner",
                    color: wall
                  },
                  {
                    key: 6,
                    geo: "F1 M0 0 L40 0 40 40 0 40 0 0 x M0 10 L40 10 x M 8 10 8 40 x M 32 10 32 40 z",
                    item: "arm chair",
                    color: blue
                  },
                  {
                    key: 7,
                    geo: "F1 M0 0 L80,0 80,40 0,40 0 0 x M0,10 L80,10 x M 7,10 7,40 x M 73,10 73,40 z",
                    item: "couch",
                    color: blue
                  },
                  {
                    key: 8,
                    geo: "F1 M0 0 L30 0 30 30 0 30 z",
                    item: "Side Table",
                    color: wood
                  },
                  {
                    key: 9,
                    geo: "F1 M0 0 L80,0 80,90 0,90 0,0 x M0,7 L80,7 x M 0,30 80,30 z",
                    item: "queen bed",
                    color: green
                  },
                  {
                    key: 10,
                    geo: "F1 M5 5 L30,5 35,30 0,30 5,5 x F M0 0 L 35,0 35,5 0,5 0,0 z",
                    item: "chair",
                    color: wood
                  },
                  {
                    key: 11,
                    geo: "F1 M0 0 L50,0 50,90 0,90 0,0 x M0,7 L50,7 x M 0,30 50,30 z",
                    item: "twin bed",
                    color: green
                  },
                  {
                    key: 12,
                    geo: "F1 M0 0 L0 60 80 60 80 0z",
                    item: "kitchen table",
                    color: wood
                  },
                  {
                    key: 13,
                    geo: "F1 M 0,0 a35,35 0 1,0 1,-1 z",
                    item: "round table",
                    color: wood
                  },
                  {
                    key: 14,
                    geo: "F1 M 0,0 L35,0 35,30 0,30 0,0 x M 5,5 L 30, 5 30,25 5,25 5,5 x M 17,2 L 17,10 19,10 19,2 17,2 z",
                    item: "kitchen sink",
                    color: metal
                  },
                  {
                    key: 15,
                    geo: "F1 M0,0 L55,0, 55,50, 0,50 0,0 x M 40,7 a 7,7 0 1 0 0.00001 0z x M 40,10 a 4,4 0 1 0 0.00001 0z x M 38,27 a 7,7 0 1 0 0.00001 0z x M 38,30 a 4,4 0 1 0 0.00001 0z x M 16,27 a 7,7 0 1 0 0.00001 0z xM 16,30 a 4,4 0 1 0 0.00001 0z x M 14,7 a 7,7 0 1 0 0.00001 0z x M 14,10 a 4,4 0 1 0 0.00001 0z",
                    item: "stove",
                    color: metal
                  },
                  {
                    key: 16,
                    geo: "F1 M0,0 L55,0, 55,50, 0,50 0,0 x F1 M0,51 L55,51 55,60 0,60 0,51 x F1 M5,60 L10,60 10,63 5,63z",
                    item: "refrigerator",
                    color: metal
                  },
                  {
                    key: 17,
                    geo: "F1 M0,0 100,0 100,40 0,40z",
                    item: "bookcase",
                    color: wood
                  },
                  {
                    key: 18,
                    geo: "F1 M0,0 70,0 70,50 0,50 0,0 x F1 M15,58 55,58 55,62 15,62 x F1 M17,58 16,50 54,50 53,58z",
                    item: "desk",
                    color: wood
                  },
                ]  // end nodeDataArray
              })  // end model
          });  // end Palette


      // the Overview

      myOverview =
        $(go.Overview, "myOverviewDiv",
          { observed: myDiagram, maxScale: 0.5 });

      // change color of viewport border in Overview
      myOverview.box.elt(0).stroke = "dodgerblue";


      // start off with an empty document
      myDiagram.isModified = false;
      newDocument();

      if (!checkLocalStorage()) {
        var currentFile = document.getElementById("currentFile");
        currentFile.textContent = "Sorry! No web storage support. If you're using Internet Explorer / Microsoft Edge, you must load the page from a server for local storage to work.";
      }

    } // end init


    // enable or disable a particular button
    function enable(name, ok) {
      var button = document.getElementById(name);
      if (button) button.disabled = !ok;
    }

    // enable or disable all context-sensitive command buttons
    function enableAll() {
      var cmdhnd = myDiagram.commandHandler;
      enable("Rename", myDiagram.selection.count > 0);
      enable("Undo", cmdhnd.canUndo());
      enable("Redo", cmdhnd.canRedo());
      enable("Cut", cmdhnd.canCutSelection());
      enable("Copy", cmdhnd.canCopySelection());
      enable("Paste", cmdhnd.canPasteSelection());
      enable("Delete", cmdhnd.canDeleteSelection());
      enable("SelectAll", cmdhnd.canSelectAll());
      enable("AlignLeft", cmdhnd.canAlignSelection());
      enable("AlignRight", cmdhnd.canAlignSelection());
      enable("AlignTop", cmdhnd.canAlignSelection());
      enable("AlignBottom", cmdhnd.canAlignSelection());
      enable("AlignCenterX", cmdhnd.canAlignSelection());
      enable("AlignCenterY", cmdhnd.canAlignSelection());
      enable("AlignRow", cmdhnd.canAlignSelection());
      enable("AlignColumn", cmdhnd.canAlignSelection());
      enable("AlignGrid", cmdhnd.canAlignSelection());
      enable("Rotate45", cmdhnd.canRotate(45));
      enable("Rotate_45", cmdhnd.canRotate(-45));
      enable("Rotate90", cmdhnd.canRotate(90));
      enable("Rotate_90", cmdhnd.canRotate(-90));
      enable("Rotate180", cmdhnd.canRotate(180));
    }

    // Commands for this application

    // changes the item of the object
    function rename(obj) {
      if (!obj) obj = myDiagram.selection.first();
      if (!obj) return;
      myDiagram.startTransaction("rename");
      var newName = prompt("Rename " + obj.part.data.item + " to:", obj.part.data.item);
      myDiagram.model.setDataProperty(obj.part.data, "item", newName);
      myDiagram.commitTransaction("rename");
    }

    // shows/hides gridlines
    // to be implemented onclick of a button
    function updateGridOption() {
      myDiagram.startTransaction("grid");
      var grid = document.getElementById("grid");
      myDiagram.grid.visible = (grid.checked === true);
      myDiagram.commitTransaction("grid");
    }

    // enables/disables guidelines when dragging
    function updateGuidelinesOption() {
      // no transaction needed, because we are modifying a tool for future use
      var guide = document.getElementById("guidelines")
      if (guide.checked === true) {
        myDiagram.toolManager.draggingTool.isGuidelineEnabled = true;
      } else {
        myDiagram.toolManager.draggingTool.isGuidelineEnabled = false;
      }
    }

    // enables/disables snapping tools, to be implemented by buttons
    function updateSnapOption() {
      // no transaction needed, because we are modifying tools for future use
      var snap = document.getElementById("snap");
      if (snap.checked === true) {
        myDiagram.toolManager.draggingTool.isGridSnapEnabled = true;
        myDiagram.toolManager.resizingTool.isGridSnapEnabled = true;
      } else {
        myDiagram.toolManager.draggingTool.isGridSnapEnabled = false;
        myDiagram.toolManager.resizingTool.isGridSnapEnabled = false;
      }
    }

    // user specifies the amount of space between nodes when making rows and column
    function askSpace() {
      var space = prompt("Desired space between nodes (in pixels):", "0");
      return space;
    }

    // update arrowkey function
    function arrowMode() {
      // no transaction needed, because we are modifying the CommandHandler for future use
      var move = document.getElementById("move");
      var select = document.getElementById("select");
      var scroll = document.getElementById("scroll");
      if (move.checked === true) {
        myDiagram.commandHandler.arrowKeyBehavior = "move";
      } else if (select.checked === true) {
        myDiagram.commandHandler.arrowKeyBehavior = "select";
      } else if (scroll.checked === true) {
        myDiagram.commandHandler.arrowKeyBehavior = "scroll";
      }
    }


    var UnsavedFileName = "(Unsaved File)";

    function checkLocalStorage() {
      try {
        window.localStorage.setItem('item', 'item');
        window.localStorage.removeItem('item');
        return true;
      } catch (e) {
        return false;
      }
    }

    function getCurrentFileName() {
      var currentFile = document.getElementById("currentFile");
      var name = currentFile.textContent;
      if (name[name.length - 1] === "*") return name.substr(0, name.length - 1);
      return name;
    }

    function setCurrentFileName(name) {
      var currentFile = document.getElementById("currentFile");
      if (myDiagram.isModified) {
        name += "*";
      }
      currentFile.textContent = name;
    }

    function newDocument() {
      // checks to see if all changes have been saved
      if (myDiagram.isModified) {
        var save = confirm("Would you like to save changes to " + getCurrentFileName() + "?");
        if (save) {
          saveDocument();
        }
      }
      setCurrentFileName(UnsavedFileName);
      // loads an empty diagram
      myDiagram.model = new go.GraphLinksModel();
      myDiagram.undoManager.isEnabled = true;
      myDiagram.addModelChangedListener(function(e) {
        if (e.isTransactionFinished) enableAll();
      });
      myDiagram.isModified = false;
    }

    // saves the current floor plan to local storage
    function saveDocument() {
      if (checkLocalStorage()) {
        var saveName = getCurrentFileName();
        if (saveName === UnsavedFileName) {
          saveDocumentAs();
        } else {
          saveDiagramProperties()
          window.localStorage.setItem(saveName, myDiagram.model.toJson());
          myDiagram.isModified = false;
        }
      }
    }

    // saves floor plan to local storage with a new name
    function saveDocumentAs() {
      if (checkLocalStorage()) {
        var saveName = prompt("Save file as...", getCurrentFileName());
        if (saveName && saveName !== UnsavedFileName) {
          setCurrentFileName(saveName);
          saveDiagramProperties()
          window.localStorage.setItem(saveName, myDiagram.model.toJson());
          myDiagram.isModified = false;
        }
      }
    }

    // checks to see if all changes have been saved -> shows the open HTML element
    function openDocument() {
      if (checkLocalStorage()) {
        if (myDiagram.isModified) {
          var save = confirm("Would you like to save changes to " + getCurrentFileName() + "?");
          if (save) {
            saveDocument();
          }
        }
        openElement("openDocument", "mySavedFiles");
      }
    }

    // shows the remove HTML element
    function removeDocument() {
      if (checkLocalStorage()) {
        openElement("removeDocument", "mySavedFiles2");
      }
    }

    // these functions are called when panel buttons are clicked

    function loadFile() {
      var listbox = document.getElementById("mySavedFiles");
      // get selected filename
      var fileName = undefined;
      for (var i = 0; i < listbox.options.length; i++) {
        if (listbox.options[i].selected) fileName = listbox.options[i].text; // selected file
      }
      if (fileName !== undefined) {
        // changes the text of "currentFile" to be the same as the floor plan now loaded
        setCurrentFileName(fileName);
        // actually load the model from the JSON format string
        var savedFile = window.localStorage.getItem(fileName);

        myDiagram.model = go.Model.fromJson(savedFile);
        loadDiagramProperties();
        myDiagram.undoManager.isEnabled = true;
        myDiagram.addModelChangedListener(function(e) {
          if (e.isTransactionFinished) enableAll();
        });
        myDiagram.isModified = false;
        // eventually loadDiagramProperties will be called to finish
        // restoring shared saved model/diagram properties
      }
      closeElement("openDocument");
    }

    // Store shared model state in the Model.modelData property
    // (will be loaded by loadDiagramProperties)
    function saveDiagramProperties() {
      myDiagram.model.modelData.position = go.Point.stringify(myDiagram.position);
    }

    // Called by loadFile.
    function loadDiagramProperties(e) {
      // set Diagram.initialPosition, not Diagram.position, to handle initialization side-effects
      var pos = myDiagram.model.modelData.position;
      if (pos) myDiagram.initialPosition = go.Point.parse(pos);
    }


    // deletes the selected file from local storage
    function removeFile() {
      var listbox = document.getElementById("mySavedFiles2");
      // get selected filename
      var fileName = undefined;
      for (var i = 0; i < listbox.options.length; i++) {
        if (listbox.options[i].selected) fileName = listbox.options[i].text; // selected file
      }
      if (fileName !== undefined) {
        // removes file from local storage
        window.localStorage.removeItem(fileName);
        // the current document remains open, even if its storage was deleted
      }
      closeElement("removeDocument");
    }

    function updateFileList(id) {
      // displays cached floor plan files in the listboxes
      var listbox = document.getElementById(id);
      // remove any old listing of files
      var last;
      while (last = listbox.lastChild) listbox.removeChild(last);
      // now add all saved files to the listbox
      for (key in window.localStorage) {
        var storedFile = window.localStorage.getItem(key);
        if (!storedFile) continue;
        var option = document.createElement("option");
        option.value = key;
        option.text = key;
        listbox.add(option, null)
      }
    }

    function openElement(id, listid) {
      var panel = document.getElementById(id);
      if (panel.style.visibility === "hidden") {
        updateFileList(listid);
        panel.style.visibility = "visible";
      }
    }

    // hides the open/remove elements when the "cancel" button is pressed
    function closeElement(id) {
      var panel = document.getElementById(id);
      if (panel.style.visibility === "visible") {
        panel.style.visibility = "hidden";
      }
    }
  </script>
</head>
<body onload="init()">
<div>
	<div id="currentFile">(Unsaved File)</div>
	<div id="menuBar">
	<ul id="nav">
		<li><a href="#">File</a>
			<ul>
				<li><a href="#" onclick="newDocument()">New</a></li>
				<li><a href="#" onclick="openDocument()">Open...</a></li>
				<li><a href="#" onclick="saveDocument()">Save</a></li>
				<li><a href="#" onclick="saveDocumentAs()">Save As...</a></li>
				<li><a href="#" onclick="removeDocument()">Delete...</a></li>
			</ul>
		</li>
		<li><a href="#">Edit</a>
			<ul>
				<li><a id="Rename" href="#" onclick="rename()">Rename</a></li>
				<li><a id="A1" href="#" onclick="myDiagram.commandHandler.undo()">Undo</a></li>
				<li><a id="Redo" href="#" onclick="myDiagram.commandHandler.redo()">Redo</a></li>
				<li><a id="Cut" href="#" onclick="myDiagram.commandHandler.cutSelection()">Cut</a></li>
				<li><a id="Copy" href="#" onclick="myDiagram.commandHandler.copySelection()">Copy</a></li>
				<li><a id="Paste" href="#" onclick="myDiagram.commandHandler.pasteSelection()">Paste</a></li>
				<li><a id="Delete" href="#" onclick="myDiagram.commandHandler.deleteSelection()">Delete</a></li>
				<li><a id="SelectAll" href="#" onclick="myDiagram.commandHandler.selectAll()">Select All</a></li>
			</ul>
		</li>
		<li><a href="#">Align</a>
			<ul >
				<li><a id="AlignLeft" href="#" onclick="myDiagram.commandHandler.alignLeft()">Left Sides</a></li>
				<li><a id="AlignRight" href="#" onclick="myDiagram.commandHandler.alignRight()">Right Sides</a></li>
				<li><a id="AlignTop" href="#" onclick="myDiagram.commandHandler.alignTop()">Tops</a></li>
				<li><a id="AlignBottom" href="#" onclick="myDiagram.commandHandler.alignBottom()">Bottoms</a></li>
				<li><a id="AlignCenterX" href="#" onclick="myDiagram.commandHandler.alignCenterX()">Center X</a></li>
				<li><a id="AlignCenterY" href="#" onclick="myDiagram.commandHandler.alignCenterY()">Center Y</a></li>
			</ul>
		</li>
		<li><a href="#">Space</a>
			<ul >
				<li><a id="AlignRow" href="#" onclick="myDiagram.commandHandler.alignRow(askSpace())">In Row...</a></li>
				<li><a id="AlignColumn" href="#" onclick="myDiagram.commandHandler.alignColumn(askSpace())">In Column...</a></li>
			</ul>
		</li>
		<li><a href="#">Rotate</a>
			<ul>
				<li><a id="Rotate45" href="#" onclick="myDiagram.commandHandler.rotate(45)">45°</a></li>
				<li><a id="Rotate_45" href="#" onclick="myDiagram.commandHandler.rotate(-45)">-45°</a></li>
				<li><a id="Rotate90" href="#" onclick="myDiagram.commandHandler.rotate(90)">90°</a></li>
				<li><a id="Rotate_90" href="#" onclick="myDiagram.commandHandler.rotate(-90)">-90°</a></li>
				<li><a id="Rotate180" href="#" onclick="myDiagram.commandHandler.rotate(180)">180°</a></li>
			</ul>
		</li>
		<li><a href="#">Options</a>
			<ul>
				<li><a href="#"><input id="grid" type="checkbox" name="options" value="grid" onclick="updateGridOption()">Grid</a></li>
				<li><a href="#"><input id="guidelines" type="checkbox" name="options" value="0" checked="checked" onclick="updateGuidelinesOption()">Guidelines</a></li>
				<li><a href="#"><input id="snap" type="checkbox" name="options" value="0" onclick="updateSnapOption()">Snapping</a></li>
				<li><a href="#">Arrow Keys >></a>
					<form >
						<ul>
							<li><a href="#"><input type="radio" name="arrow" id="move" onclick="arrowMode()" checked="checked">Move</a></li>
							<li><a href="#"><input type="radio" name="arrow" id="select" onclick="arrowMode()">Select</a></li>
							<li><a href="#"><input type="radio" name="arrow" id="scroll" onclick="arrowMode()">Scroll</a></li>
						</ul>
					</form>
				</li>
			</ul>
		</li>
		<li><a href="#" onclick="window.open('FloorPlanMonitor.html')">Monitor</a></li>
	</ul>
	</div><!--END menu bar -->

	<div id="PaletteAndDiagram" style="position: relative; overflow: hidden; width: 100%;">
		<div id="sideBar" style="float:left; width:23%; min-height: 500px; text-align:center">
			<div class="handle">Palette:</div>
			<div id="myPaletteDiv" style="border:solid 1px gray; width: 100%; min-height: 625px"></div>
			<div class="handle">Overview:</div>
			<div id="myOverviewDiv" style="border:solid 1px gray; width: 100%; height:225px;"></div>
		</div>
		<div id="myDiagramDiv" style="position: absolute; border: solid 1px gray; width:77%; height: 100%; min-height:500px; margin-left:23%; background-color:white"></div>
	</div>

	<div id="openDocument" class="draggable">
	  <div id="openDraggableHandle" class="handle">Open File</div>
	  <div id="openText" class="elementText">Choose file to open...</div>
	  <select id="mySavedFiles" class="mySavedFiles" ></select>
	  <br />
	  <button id="openBtn" class="elementBtn" type="button" onclick="loadFile()" style="margin-left:70px">Open</button>
	  <button id="cancelBtn"class="elementBtn" type="button" onclick="closeElement('openDocument')" >Cancel</button>
	</div>

	<div id="removeDocument" class="draggable">
		<div id="removeDraggableHandle" class="handle">Delete File</div>
		<div id="removeText" class="elementText">Choose file to remove...</div>
		<select id="mySavedFiles2" class="mySavedFiles" ></select>
		<br />
		<button id="removeBtn" class="elementBtn" type="button" onclick="removeFile()" style="margin-left:70px">Remove</button>
		<button id="cancelBtn2"class="elementBtn" type="button" onclick="closeElement('removeDocument')">Cancel</button>
	</div>
  <p>
	This sample demonstrates several custom <a>Tool</a>s, defined in their own files:
	<a href="GuidedDraggingTool.js">GuidedDraggingTool.js</a>, <a href="ResizeMultipleTool.js">ResizeMultipleTool.js</a>, <a href="RotateMultipleTool.js">RotateMultipleTool.js</a>,
	and a custom <a>CommandHandler</a>: <a href="DrawCommandHandler.js">DrawCommandHandler.js</a>.
  </p>
</div>
</body>
</html>
